After hearing about the Yoga a few months back, I was intrigued by the form factor and the entire concept of a convertible ultrabook. The Thinkpad Twist executes this concept very well. The mid-tier sample that we reviewed contained a processor and memory configuration more than adequate to the task at hand. Its light and easy to carry around at a mere 3.5 pounds, and has a solid feel to it because of the magnesium material used in the design. I was worried about the hinge mechanism, but found it to be well designed and solidly constructed."